NDBC has recently revised the NDBC Handbook of Automated Data Quality Control Checks and Procedures. The new document can be found on our Publications page.
Station LTQM2 - Otter Point Creek, Chesapeake Bay Reserve, MD
Owned and maintained by National Estuarine Research Reserve System
NERRS Water Quality Station
39.451 N 76.275 W (39°27'3" N 76°16'29" W)
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(24 hours for tsunami stations)
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These oceanographic data are displayed in rounded times. Click on the graph icon in the table below to see a time series plot of the last five days of that observation. | |
| Depth (DEPTH): | 1.0 ft |
 Ocean Temperature (OTMP): | 75.20 °F |
| Conductivity (COND): | 1.08 mS/cm |
| Salinity (SAL): | 0.50 psu |
| Oxygen Saturation (O2PCT): | 115.0% |
| Oxygen Concentration (O2PPM): | 9.70 ppm |
| Turbidity (TURB): | 20 FTU |
| pH (PH): | 8.00 |
| TIME (EDT) |
DEPTH ft |
OTMP °F |
COND mS/cm |
SAL psu |
O2% % |
O2PPM ppm |
CLCON ug/l |
TURB FTU |
PH |
EH mv |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-05-19 03:45 pm | 1.0 | 75.38 | 1.06 | 0.50 | 116.40 | 9.80 | - | 20 | 8.00 | - |
| 2025-05-19 03:30 pm | 1.3 | 75.02 | 1.05 | 0.50 | 114.80 | 9.70 | - | 19 | 8.00 | - |
| 2025-05-19 03:15 pm | 1.3 | 74.66 | 1.04 | 0.50 | 114.40 | 9.70 | - | 20 | 7.90 | - |
| 2025-05-19 03:00 pm | 1.3 | 74.48 | 1.04 | 0.50 | 114.60 | 9.70 | - | 25 | 7.90 | - |
| 2025-05-19 02:45 pm | 1.3 | 73.76 | 1.04 | 0.50 | 109.00 | 9.30 | - | 22 | 7.80 | - |
| 2025-05-19 02:30 pm | 1.3 | 73.22 | 1.04 | 0.50 | 103.40 | 8.90 | - | 24 | 7.70 | - |
| 2025-05-19 02:15 pm | 1.3 | 72.86 | 1.04 | 0.50 | 99.20 | 8.50 | - | 23 | 7.60 | - |
| 2025-05-19 02:00 pm | 1.3 | 73.04 | 1.04 | 0.50 | 99.90 | 8.60 | - | 26 | 7.60 | - |
| 2025-05-19 01:45 pm | 1.3 | 72.86 | 1.03 | 0.50 | 98.90 | 8.50 | - | 24 | 7.60 | - |
| 2025-05-19 01:30 pm | 1.3 | 72.86 | 1.02 | 0.50 | 96.60 | 8.30 | - | 25 | 7.50 | - |
| 2025-05-19 01:15 pm | 1.3 | 72.86 | 1.02 | 0.50 | 97.10 | 8.30 | - | 29 | 7.50 | - |
| 2025-05-19 01:00 pm | 1.3 | 72.68 | 1.01 | 0.50 | 95.30 | 8.20 | - | 30 | 7.50 | - |
| 2025-05-19 12:45 pm | 1.3 | 73.22 | 1.03 | 0.50 | 101.30 | 8.70 | - | 28 | 7.60 | - |
| 2025-05-19 12:30 pm | 1.3 | 73.04 | 1.04 | 0.50 | 106.50 | 9.10 | - | 14 | 7.70 | - |
| 2025-05-19 12:15 pm | 1.3 | 72.86 | 1.04 | 0.50 | 104.90 | 9.00 | - | 12 | 7.60 | - |
| 2025-05-19 12:00 pm | 1.3 | 72.32 | 1.05 | 0.50 | 97.70 | 8.50 | - | 13 | 7.50 | - |
| 2025-05-19 11:45 am | 1.3 | 72.14 | 1.05 | 0.50 | 95.20 | 8.30 | - | 11 | 7.40 | - |
| 2025-05-19 11:30 am | 1.3 | 71.78 | 1.05 | 0.50 | 92.70 | 8.10 | - | 13 | 7.40 | - |
| 2025-05-19 11:15 am | 1.3 | 71.42 | 1.08 | 0.50 | 90.40 | 7.90 | - | 18 | 7.40 | - |
| 2025-05-19 11:00 am | 1.0 | 71.24 | 1.05 | 0.50 | 90.80 | 8.00 | - | 12 | 7.30 | - |
| 2025-05-19 10:45 am | 1.0 | 70.88 | 1.02 | 0.50 | 89.50 | 7.90 | - | 17 | 7.30 | - |
| 2025-05-19 10:30 am | 1.0 | 70.70 | 0.99 | 0.50 | 85.80 | 7.60 | - | 12 | 7.30 | - |
| 2025-05-19 10:15 am | 1.0 | 70.70 | 0.98 | 0.50 | 86.50 | 7.60 | - | 12 | 7.30 | - |
| 2025-05-19 10:00 am | 0.7 | 70.52 | 0.92 | 0.50 | 85.00 | 7.50 | - | 11 | 7.30 | - |
| 2025-05-19 09:45 am | 0.7 | 69.98 | 0.82 | 0.40 | 80.40 | 7.10 | - | 11 | 7.20 | - |
| 2025-05-19 09:30 am | 0.7 | 69.62 | 0.79 | 0.40 | 79.50 | 7.10 | - | 18 | 7.20 | - |
| 2025-05-19 09:15 am | 0.7 | 69.26 | 0.79 | 0.40 | 78.40 | 7.00 | - | 14 | 7.10 | - |
| 2025-05-19 09:00 am | 0.3 | 68.90 | 0.79 | 0.40 | 75.20 | 6.80 | - | 13 | 7.10 | - |
| 2025-05-19 08:45 am | 0.3 | 68.36 | 0.81 | 0.40 | 71.20 | 6.40 | - | 17 | 7.00 | - |
| 2025-05-19 08:30 am | 0.3 | 68.00 | 0.80 | 0.40 | 66.00 | 6.00 | - | 15 | 7.00 | - |
| 2025-05-19 08:15 am | 0.3 | 68.00 | 0.80 | 0.40 | 65.40 | 5.90 | - | 16 | 7.00 | - |
| 2025-05-19 08:00 am | 0.3 | 67.64 | 0.80 | 0.40 | 62.60 | 5.70 | - | 14 | 7.00 | - |
| 2025-05-19 07:45 am | 0.3 | 67.64 | 0.80 | 0.40 | 60.50 | 5.50 | - | 15 | 7.00 | - |
| 2025-05-19 07:30 am | 0.3 | 67.64 | 0.81 | 0.40 | 57.70 | 5.30 | - | 15 | 6.90 | - |
| 2025-05-19 07:15 am | 0.3 | 67.64 | 0.81 | 0.40 | 57.00 | 5.20 | - | 16 | 6.90 | - |
| 2025-05-19 07:00 am | 0.3 | 67.64 | 0.82 | 0.40 | 55.20 | 5.00 | - | 15 | 6.90 | - |
| 2025-05-19 06:45 am | 0.7 | 67.64 | 0.84 | 0.40 | 53.80 | 4.90 | - | 17 | 6.90 | - |
| 2025-05-19 06:30 am | 0.7 | 67.82 | 0.84 | 0.40 | 55.40 | 5.00 | - | 13 | 6.90 | - |
| 2025-05-19 06:15 am | 0.7 | 67.64 | 0.85 | 0.40 | 58.30 | 5.30 | - | 15 | 6.90 | - |
| 2025-05-19 06:00 am | 0.7 | 67.82 | 0.87 | 0.40 | 60.10 | 5.50 | - | 16 | 6.90 | - |
| 2025-05-19 05:45 am | 0.7 | 68.00 | 0.88 | 0.40 | 59.90 | 5.40 | - | 17 | 6.90 | - |
| 2025-05-19 05:30 am | 0.7 | 68.36 | 0.89 | 0.40 | 60.00 | 5.40 | - | 16 | 6.90 | - |
| 2025-05-19 05:15 am | 0.7 | 68.72 | 0.90 | 0.50 | 61.10 | 5.50 | - | 19 | 7.00 | - |
| 2025-05-19 05:00 am | 1.0 | 69.08 | 0.90 | 0.40 | 63.80 | 5.70 | - | 17 | 7.00 | - |
| 2025-05-19 04:45 am | 1.0 | 69.26 | 0.88 | 0.40 | 65.30 | 5.90 | - | 18 | 7.00 | - |
| 2025-05-19 04:30 am | 1.0 | 69.26 | 0.86 | 0.40 | 66.40 | 5.90 | - | 18 | 7.00 | - |
| 2025-05-19 04:15 am | 1.0 | 69.44 | 0.85 | 0.40 | 66.50 | 5.90 | - | 16 | 7.00 | - |
| 2025-05-19 04:00 am | 1.0 | 69.62 | 0.85 | 0.40 | 67.30 | 6.00 | - | 17 | 7.00 | - |
| 2025-05-19 03:45 am | 1.0 | 69.62 | 0.85 | 0.40 | 66.60 | 5.90 | - | 16 | 7.00 | - |
| 2025-05-19 03:30 am | 1.3 | 69.80 | 0.86 | 0.40 | 68.10 | 6.10 | - | 16 | 7.00 | - |
| 2025-05-19 03:15 am | 1.3 | 69.62 | 0.85 | 0.40 | 70.80 | 6.30 | - | 17 | 7.10 | - |
| 2025-05-19 03:00 am | 1.3 | 69.98 | 0.86 | 0.40 | 68.90 | 6.10 | - | 19 | 7.10 | - |
| 2025-05-19 02:45 am | 1.3 | 69.98 | 0.85 | 0.40 | 71.00 | 6.30 | - | 17 | 7.10 | - |
| 2025-05-19 02:30 am | 1.3 | 69.98 | 0.84 | 0.40 | 72.00 | 6.40 | - | 17 | 7.10 | - |
| 2025-05-19 02:15 am | 1.3 | 70.16 | 0.83 | 0.40 | 72.30 | 6.40 | - | 16 | 7.10 | - |
| 2025-05-19 02:00 am | 1.3 | 70.16 | 0.83 | 0.40 | 73.20 | 6.50 | - | 16 | 7.10 | - |
| 2025-05-19 01:45 am | 1.3 | 70.16 | 0.84 | 0.40 | 74.90 | 6.60 | - | 17 | 7.10 | - |
| 2025-05-19 01:30 am | 1.3 | 70.34 | 0.84 | 0.40 | 75.40 | 6.70 | - | 19 | 7.20 | - |
| 2025-05-19 01:15 am | 1.3 | 70.52 | 0.87 | 0.40 | 75.90 | 6.70 | - | 19 | 7.20 | - |
| 2025-05-19 01:00 am | 1.3 | 70.52 | 0.87 | 0.40 | 76.30 | 6.70 | - | 19 | 7.20 | - |
| 2025-05-19 12:45 am | 1.3 | 70.88 | 0.91 | 0.50 | 76.40 | 6.70 | - | 20 | 7.20 | - |
| 2025-05-19 12:30 am | 1.3 | 70.88 | 0.92 | 0.50 | 77.30 | 6.80 | - | 19 | 7.20 | - |
| 2025-05-19 12:15 am | 1.3 | 70.88 | 0.84 | 0.40 | 78.50 | 6.90 | - | 17 | 7.20 | - |
| 2025-05-19 12:00 am | 1.3 | 71.06 | 0.90 | 0.40 | 79.90 | 7.00 | - | 18 | 7.20 | - |
| 2025-05-18 11:45 pm | 1.0 | 71.06 | 0.99 | 0.50 | 81.70 | 7.20 | - | 18 | 7.20 | - |
| 2025-05-18 11:30 pm | 1.0 | 71.42 | 1.05 | 0.50 | 83.50 | 7.30 | - | 18 | 7.30 | - |
| 2025-05-18 11:15 pm | 1.0 | 71.60 | 1.02 | 0.50 | 84.60 | 7.40 | - | 19 | 7.30 | - |
| 2025-05-18 11:00 pm | 1.0 | 71.96 | 0.96 | 0.50 | 85.00 | 7.40 | - | 21 | 7.30 | - |
| 2025-05-18 10:45 pm | 1.0 | 72.14 | 0.92 | 0.50 | 86.30 | 7.50 | - | 22 | 7.30 | - |
| 2025-05-18 10:30 pm | 1.0 | 72.32 | 0.92 | 0.50 | 87.10 | 7.50 | - | 20 | 7.30 | - |
| 2025-05-18 10:15 pm | 1.0 | 72.50 | 0.94 | 0.50 | 88.60 | 7.70 | - | 19 | 7.40 | - |
| 2025-05-18 10:00 pm | 1.0 | 72.68 | 0.90 | 0.40 | 89.80 | 7.80 | - | 20 | 7.40 | - |
| 2025-05-18 09:45 pm | 0.7 | 72.86 | 0.85 | 0.40 | 90.70 | 7.80 | - | 24 | 7.40 | - |
| 2025-05-18 09:30 pm | 0.7 | 73.04 | 0.79 | 0.40 | 91.90 | 7.90 | - | 22 | 7.40 | - |
| 2025-05-18 09:15 pm | 0.7 | 73.04 | 0.78 | 0.40 | 93.10 | 8.00 | - | 22 | 7.40 | - |
| 2025-05-18 09:00 pm | 0.7 | 73.22 | 0.77 | 0.40 | 93.60 | 8.00 | - | 22 | 7.40 | - |
| 2025-05-18 08:45 pm | 0.7 | 73.40 | 0.79 | 0.40 | 96.00 | 8.20 | - | 21 | 7.50 | - |
| 2025-05-18 08:30 pm | 0.7 | 73.58 | 0.76 | 0.40 | 97.40 | 8.30 | - | 18 | 7.50 | - |
| 2025-05-18 08:15 pm | 0.7 | 73.76 | 0.71 | 0.40 | 99.10 | 8.50 | - | 19 | 7.60 | - |
| 2025-05-18 08:00 pm | 0.3 | 73.94 | 0.70 | 0.30 | 100.50 | 8.60 | - | 17 | 7.60 | - |
| 2025-05-18 07:45 pm | 0.3 | 74.12 | 0.69 | 0.30 | 102.20 | 8.70 | - | 17 | 7.70 | - |
| 2025-05-18 07:30 pm | 0.3 | 74.30 | 0.68 | 0.30 | 103.10 | 8.80 | - | 18 | 7.70 | - |
| 2025-05-18 07:15 pm | 0.3 | 74.48 | 0.67 | 0.30 | 104.30 | 8.80 | - | 19 | 7.70 | - |
| 2025-05-18 07:00 pm | 0.7 | 74.66 | 0.68 | 0.30 | 104.40 | 8.80 | - | 20 | 7.70 | - |
| 2025-05-18 06:45 pm | 0.7 | 74.66 | 0.74 | 0.40 | 104.30 | 8.80 | - | 19 | 7.70 | - |
| 2025-05-18 06:30 pm | 0.7 | 74.84 | 0.76 | 0.40 | 103.70 | 8.80 | - | 19 | 7.70 | - |
| 2025-05-18 06:15 pm | 0.7 | 74.84 | 0.80 | 0.40 | 103.60 | 8.70 | - | 21 | 7.70 | - |
| 2025-05-18 06:00 pm | 0.7 | 74.84 | 0.78 | 0.40 | 104.50 | 8.80 | - | 22 | 7.70 | - |
| 2025-05-18 05:45 pm | 1.0 | 75.02 | 0.74 | 0.40 | 103.90 | 8.80 | - | 22 | 7.70 | - |
| 2025-05-18 05:30 pm | 1.0 | 75.02 | 0.72 | 0.40 | 104.50 | 8.80 | - | 21 | 7.70 | - |
| 2025-05-18 05:15 pm | 1.0 | 75.02 | 0.77 | 0.40 | 103.00 | 8.70 | - | 23 | 7.70 | - |
| 2025-05-18 05:00 pm | 1.0 | 75.20 | 0.78 | 0.40 | 102.00 | 8.60 | - | 22 | 7.60 | - |
| 2025-05-18 04:45 pm | 1.3 | 75.20 | 0.78 | 0.40 | 100.40 | 8.40 | - | 22 | 7.60 | - |
| 2025-05-18 04:30 pm | 1.3 | 75.20 | 0.74 | 0.40 | 99.80 | 8.40 | - | 21 | 7.60 | - |
| 2025-05-18 04:15 pm | 1.3 | 75.02 | 0.76 | 0.40 | 97.60 | 8.20 | - | 23 | 7.50 | - |
| 2025-05-18 04:00 pm | 1.3 | 75.20 | 0.73 | 0.40 | 95.80 | 8.10 | - | 20 | 7.50 | - |
Links which are specific to this station are listed below:
Real Time Data in tabular form for the last forty-five days.
Historical Data & Climatic Summaries for quality controlled data for prior months and years.
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